A series is formed by successive even numbers starting with 2 and each number repeated as many times as the number is.Thus the first 30 terms are:
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The sum of first 6 terms of gp with a negative commom ratio is 91 times the sum of the first 2 terms
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A sequence with nth term tn=(n-2)/(n+2) where n is an even integer greater than 2,then the value of the product(t4t6t8........t102) is
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s=2/9+6/9^2+12/9^3+20/9^4+..........
A cow is tied by a rope of length 10 m to a post at the corner of a square field with a side of 10 m. A daisy blooms in the field. Given that the cow likes daisies,what is the probability that the daisy is eaten by the cow?
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The product of two numbers '231' and 'ABA' is 'BA4AA' in a certain base system (where base is less than 10), where A and B are distinct digits. What is the base of that system?
Concentric circles radii 1, 2, 3, ... , 100 are drawn. The interior of the smallest circle is colored red and the annular regions are colored alternately green and red, so that no two adjacent regions are the same color. The total area of the green regions divided by the area of the largest circle is
(a) 1/2 (b) 51/100 (c) 101/200 (d) 50/101 (e) none of the foregoing
Hi Puys,
I needed a help in a basic question written below.
solve the inequality |2x+7|>-5.
Now, I know the mod of anything is positive hence here the ans shud be (-infinity,infinity).
But, if i do it from another method say, |2x+7| >-5 hence 2x+7>-5 , -(2x+7)>-5 so i will get
x>-6,x>-1, so the ans differs.
can anyone plz explain what is wrong in the 2nd approach..?plz.. 
z is a number in decimal system such that z=260*1024+73*512+128*129+81+9.Let y be the octal representation of z.How many times will the digit '3' be there in Y?
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If 5x+2y =15 then find the maximum value of x^3y^2. How to solve this ? OA is 6561/125.
Increasing area of inscribed figure is
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Let d time traveling for 50km/ hr be T then time for traveling at 80 km/hr be 5-T
now 50T+80(5-T)=300
T=3 1/3😁
In a right angled triangle, ABC, AB= 12 sq root(3) cm , BC =24 cm, angle A = 90 degrees. An equilateral triangle is constructed with AB as one of its sides. Find the minimum possible length of CD.
1. 12 sq rt (3)
2. 12
3. 12 sq rt (7)
4. 9 sq rt (3)
in tennis tournament there are 128 players and there is an atp tournament at the end which chooses 32 players who are selected on the basis of total matches won in 4 grand slams putting toether.so auppose 32 players are selected and to select 32 nd plyr if there is a tie between two or more players then one among these players will be chosen on certain parameters .all the tournaments r played at knockout basis and one player goes to next round if he wins the match.each player left plays exactly 1match with the other.the person who wons last match of atp is awarded a particular title for that particular tournament.
1)what is a maximum no of win possible if a player is not selected fort atp?
2)least no of wins a winner of atp will have?
3)if no player won more than 1 title then maximum no of wins in 5 tournament for top 4 players will be? plz explain
q1 Find the maximum value of (9-x)^2 (-4+x)^3.
hey ppl an AIMCAT qn.. can anyone explain me the approach ?
How can we solve this ?
Another AIMCAT qn.. Any simple approaches ??
A = {1, 4, 7, 10, ..., 2004th term} B = {9, 16, 23, 30, ..., 2004th term} If S=AUB , how many elements are there in S?
a)3722
b)3732
c)3914
d)3924
plz explain the ans. ans is aThe horizontal distance of a kite from the boy flying it is 30m and 50m of cord is out of roll. If the wind moves the kite horizontally at the rate of 5 km/hr directly away from the boy. How fast is the cord being released ?
a.3kmph b.5kmph c.6kmph